DNS Gurus
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22 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Weak
max-age=0; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

1 headers
Connection
Performance
close

Caching Headers

1 headers
Etag
Caching
W/"3f-GR0G8sZfNVmVbqqGkyrPOefU7Ys"

Content Headers

2 headers
Content-Length
Content
63
Content-Type
Content
application/json; charset=utf-8

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
Express

CORS Headers

6 headers
Access-Control-Allow-Credentials
Cors
true
Access-Control-Allow-Headers
Cors
Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,X-HTTP-Method-Override
Access-Control-Allow-Methods
Cors
GET,POST,PUT,PATCH,DELETE,OPTIONS
Access-Control-Allow-Origin
Cors
*
Access-Control-Expose-Headers
Cors
Content-Length,Content-Range,Content-Disposition,Content-Type
Access-Control-Max-Age
Cors
1728000

Cookies Headers

0 headers
No cookies headers found

Other Headers

9 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c2c469f896cef64-IAD
Date
Other
Sat, 24 Jan 2026 02:59:37 GMT
Instanceip
Other
10.0.158.255:3000
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=D7MqYKo9Au6PER7aLfSxoOVO0ELfFFcja94pTQd4zp0z3dxonQKC%2FPlnC0Ncvmiw0aau%2BDmdWUxMWvNHUWnEJm7dzhFoyBUc%2F2ykspEryg%3D%3D"}]}
Server-Timing
Other
cfEdge;dur=100,cfOrigin;dur=10
X-Service-Name
Other
frontend

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Consider removing X-Powered-By header to hide server technology